Bug 989947 - disable popups during modal alerts on OS X, r=bz
Bug 989947 - reshow popup when in modal state, r=MattN
Bug 989947 - test UITour interaction with modal popup, r=MattN
Bug 1052466 - [10.10] Update titlebar/toolbar to use transparency on OS X Yosemite, r=mstange,f=gijs